Required a. Prepare a contribution income statement for July. b. Determine Jail and Sail's monthly break-even point in units. c. Determine Jail and Sail's margin of safety in units for July. d. Determine the unit sales required for a monthly after-tax profit of $20,000. e. Prepare a cost-volume-profit graph. Label the horizontal axis in units with a maximum value of 4,000. Label the vertical in dollars with a maximum value of $600,000. Draw a vertical line on the graph for the current (2,200) unit level and label total variable costs, total fixed costs, and total before-tax profits at 2,200 units.